update

@@ -39,42 +39,41 @@ func main() {
 	if key == "" || iv == "" || privateKeyPath == "" || publicKeyPath == "" || ip == "" || bussinessCode == "" || ptCode == "" || reqBody == "" || resultFilePath == "" || errFilePath == "" {
 		os.Exit(1)
 	}
-
-	fd, _ := os.OpenFile(errFilePath, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0644)
-	defer fd.Close()
-
-	publicKey, err := ioutil.ReadFile(publicKeyPath)
+	var err error
+	var publicKey, privateKey []byte
+	var req string
+	var file, fd *os.File
+	fd, err = os.OpenFile(errFilePath, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0644)
 	if err != nil {
+		os.Exit(1)
+	}
+	defer fd.Close()
+	defer func() {
 		write := bufio.NewWriter(fd)
 		write.WriteString("命令行执行错误:" + err.Error() + "\r\n")
 		write.Flush()
+	}()
+
+	publicKey, err = ioutil.ReadFile(publicKeyPath)
+	if err != nil {
 		return
 	}
-	privateKey, err := ioutil.ReadFile(privateKeyPath)
+	privateKey, err = ioutil.ReadFile(privateKeyPath)
 	if err != nil {
-		write := bufio.NewWriter(fd)
-		write.WriteString("命令行执行错误:" + err.Error() + "\r\n")
-		write.Flush()
 		return
 	}
 
 	client := socialwork_sdk.NewOrderClient(key, iv, string(privateKey), string(publicKey), ip, ptCode)
-	req, err := client.SendRequest(bussinessCode, reqBody)
+	req, err = client.SendRequest(bussinessCode, reqBody)
 	if err != nil {
-		write := bufio.NewWriter(fd)
-		write.WriteString("命令行执行错误:" + err.Error() + "\r\n")
-		write.Flush()
 		return
 	} else {
-		file, err := os.Create(resultFilePath)
-		defer file.Close()
-
+		file, err = os.Create(resultFilePath)
 		if err != nil {
-			write := bufio.NewWriter(fd)
-			write.WriteString("命令行执行错误:" + err.Error() + "\r\n")
-			write.Flush()
 			return
 		}
+		defer file.Close()
+
 		file.WriteString(req)
 		return
 	}